Op otttjmwa



H. MOSCHEL.-

HAY STACKER, APPLI CATION F| LED AUG- 19. 1918.

1,318,789. Patented Oct. 14,1919.

3 SHEETSSHEET I.

mam W mfnzqa- H; MOSCHEL.

HAY STACKER.

APPLICATION HLED AUG-WI I9IB- Patented 001314;,1919.

' 3 SHEETS-SHEET s.

7 I 40 :zr';

'upon the stack.

UNITED STATES PATENT OFFICE.

I HERMAN MOSGHEL, OF OTTUMWA, IOWA, ASSIGNOR- '10 DAIN MANUFACTURINGCOMPANY OF IOWA, 0F OTTUMWA, IOWA, A- CORPQRA'I-ION OF IOWA.

HAY-STACKER.

Specification of Letters ?aten-t. Patented 31 14, 1919 Application filedAugust 19, 1918. Serial 1102 250,514.

To all whom it may concern I Be it known that I, HERMAN Mosorrnn, aciti-Zen of the United States, and a resident of Ottumwa, in the countyof WVapello and State of Iowa, have invented certain new and usefulImprovements in Hay-Stackers', of which the following is aspecification, reference being had to the accompanying drawings. 7

My invention relates to hay stackers of the overshot type, in which thehay deposited upon a head carried by a swinginglift ing frame pivotallysupported at its lower end, is carried up over the stacker by theswinging of the lifting frame and deposited When the stacker is inloadin position the lifting frame is substanti-a ly parallel with theground with the head resting on the ground so that it is in position tohave the hay deposited upon it bya sweep rake or other suitableimplement. The hoisting of the lifting frame is usually accomplished bymeans of a system of lev'ers and rope and pulley mechanism, the powerbeing furnished by a team which hauls upon the hoisting rope and therebyswings the liftingframe upward to a point beyond its perpendicularposition so that the hay is thrown clear of the stacker. In staokers ofthis description it is desirable that the head and the supportingdevices therefor be so constructed and arranged th'atthe radius of theare through which the head is moved may be varied in length so that whenthe stack is small the hay will not be lifted as high as whenthe stackhas been built up to a considerable height. Obviously, as the point atwhich power is applied to the lifting frame is constant, greater poweris required to raise the head from the ground and through the initialstages of the lifting operatlon when the head is extended than when itis in its retracted position, and furthermore, the power required tolift the head during the early stages of the lifting operai tion is muchgreater in proportion than that required to carry on the liftingoperation after the lifting mechanism assumes a more favorable position.In view of these considerations," it is desirable that anextensiblestacker of the type described be so constructed and arrangedthat the stacker head will always be retracted when in position to beloaded, and will be extended principally after the load has been partlyraised and the lifting mechanism is acting undermorefavorableconditions, as in that way the power required during the entlre liftingoperatlon is more" nearly equalized and the initial ex penditure ofpower required is less, and to pr'ovlde a stacker which will operate inthis way is the principal object of my inveng tion. A further object isto provide a construct on by which the height to which the head 13extended maybe adjusted so that as the stack is built up, the head willbe raised accordingly.-

In the accompanying drawings Figure I is a side elevation showing theparts of the stacker in their loading position;

Fig. 2' is a plan view thereof; and

Fig; 3 isa side elevation showing the parts in the position'which theyoccupy when the load hasbeen'par'tly raised and the" stacker headextended about half way.-

Referring to the drawings: 5 6 indicate parallel side sills, and, 7 8front and rear cross bars which connect the end portions of said sidesills and form with them a rectangular frame or base upon which theoperating parts of the stackers are mounted. 9 indicates an intermediatecross bar used to strengthen the base; For this purpose I also providedivergent braces 1011, which eXtend from the center of the rear crossbar to the sills 5-6. respectively. 12-13 indicate brackets which aremounted upon the outer ends of the braces 10-1l, as shown in Fig. 2',and are provided with outwardly extending pins ll'.l5 upon which arepivoted the side members 16 of the lifting frame. One of these membersis shown in Figs. 1 anfdB, and it will be understood that asimilarmember is provided at the opposite side of the machine: The forward endsof said members 16 are connected by transverse bars 17, shown in Fig. 2,and are braced thereto by, corner brackets or braces 18, as showninsaidfigure. this construction the lifting frame composed of the two sidemembers 16 and the Crossbars 17 isadapted to swing; in a vertical planeabout the pivot pins 1415.

19-20 indicate the side members of an extensible frame which overlie theside members 16' of the lifting frame and are held in. operativeposition by clips 2122, as shown in Figs. 1 and 2. WVhile these clipshold the extensible frame upon the lifting frame, they permit theextensible frame to slide endwise upon the lifting frame for the purposeof increasing or diminishing the radius of the are through which thestacker head swings, as will be hereinafter more fully explained. 23.indicates the stacker head which may be of any suitable construction andtherefore need not be particularly described. 24: indicates the teeth ofthe stacker head, upon which the hay is deposited, and 25 indicatesupstanding pitcher teeth upon which the hay rests after the stacker headhas been raised to a certain extent. 2627 indicate links which extendrearwardly from the side members 192O of the extensible frame, and arepivotally connected therewith by pivots 28-29 mounted in pairs of straps30-31 secured to the side members 1920, respectively, as shown in Figs.12. The links 2627 overlie the rear portions of the side members 16 ofthe lifting frame, and preferably extend some little distance beyondthem, as shown in Fig. 1. At or near their rear ends the links 26 27 areprovided with brackets 3233 having laterally-projecting pins 34s35 uponwhich are pivotally mounted the rear end portions of levers 3637. g Theforward end portions of said levers are mounted respectively on pivots3839 carried by brackets 40t1 secured to the side sills 56 of the baseat a point forward of the pivots 0f the lifting frame and preferablyapproximately mid way of the length of the side sills of the base, asshown in Figs. 1-2. The levers 36-37 are provided with longitudinalslots 12, as shown in Fig. 1, and the side members 16 are provided withlaterally-projecting pins or fulcra 4:34a which extend through saidslots 42, as shown in said figure and in Fig. 3, so that said levers arefulcrumed intermediately of their length on the side members 16.

From the foregoing description it will be apparent that when the li tingframe is swung upward about its pivots 1415 carrying with it theextensible frame, the pins 43% will act intermediately upon thislevers36-37 to swing them upwardly about their pivots 3839, therebyswinging the rear ends of the links 2627 upward, said links turningabout their pivots 2829. As will be evident from an inspection of Fig.8, as the upward movement of the lifting frame continues, the links26-23 will not only assume a pronounced angular position with referenceto the lifting frame, but will also move endwise toward the forward orupper end of the said lifting frame, thereby extending the extensibleframe and the head carried by it. Further movement in the same directionof the lifting frame will again swing the links 2627 approximately intoparallellism with the lifting frame, and, as the" pins 43 approach theouter ends of the slots 42, will move said links endwise until thebrackets 32-33 are approximately in line with the pins 43, when the headwill be completely extended. It will be noted that at the beginning ofthe hoisting movement the head will be extended comparatively slowlyowing to the swinging movement of the links 2627, but after the liftingframe has been raised until it assumes an angular position of aboutthirty degrees, the head will be extended much more rapidly. This isdesirable because after the lifting frame has been partially hoisted,the lever mechanism hereinafter described through which the lifting isaccomplished assumes a more favorable angle, and consequently theexpenditure of power necessary to continue the hoisting operation isproportionately less so that the more rapid extension of the head atthat time merely equalizes the expenditure of power necessary tocontinue the lifting operation. vVhen the load has been dis charged andthe lifting frame is lowered the head is retracted automatically by areversal of the operation of the parts above described so that when thelifting frame is again in loading position the head is again com pletelyretracted.

The mechanism by which the lifting frame together with the extensibleframe and head are raised may be of any suitable description, but ispreferably of the wellknown type which comprises an A-shaped, orinverted V-shaped, frame 45 which is pivoted to the side sills 56 of thebase substantially in line with the pivots 3839, as shown in Fig. 3. 16indicates a rocking lever or walking beam which is pivoted at 17 uponthe upper end portion of the frame 45 and at its forward end isconnected by diverging links 48%.) with the forward end portions of thelifting frame members 16, as shown in Figs. 2*3. The rear end portion ofsaid lever i6 carries a sheave 50 around which operates a hoisting rope51 running around sheaves secured to the rear cross bar 8, as shown insaid figures. Thus, by means of the hoisting rope the A- frame 45 may beswung backward and the rear end of the lever 46 pulled downward to hoistthe stacker head and operate the mech anism for extending it. Thelifting frame is held in proper position when the stacker head islowered by a chain 5 1 which is connected with the forward end of thelever 46 and to the divergent braces 1011, as shown in Figs. 12. Whenthe stacker head is elevated it is prevented from passing too far beyondthe perpendicular by the usual stop ropes 5556 which, at one end areconnected with the forward end portions of the lifting frame members 16,and after passing around sheaves 5758 connected with the forward endportions of the side sills 56, are connected respectively to chains5960, which are attached to blocks 61-62 arranged to slide on rods 636etwhich I carry springs 65-66, as shown in Fig. 2.

These rods are secured to the base, and the arrangement of the parts issuch that when the lifting frame passesbeyond its perpendicular positionthe blocks 61-'62 compress the springs 65-66, thereby, not onlycushioning. the lifting frame, but also, because of the quick rebound.thereof, aiding in pitching the hay from the stacker head. By adjustingthe stop ropes in any suitable way, the point at which the springs 65-66act to resist further movement of the lifting frame may be. varied. Thismay be done by lengthening or shortening the ropes 55-56.

In order that the extent to which the stacker head is extended may bevaried, the members 16 of the lifting-frame are provided with a seriesof holes 67, best shown i i-Fig. 3, so that the pins iii-AA maybe placedat different distances from the pivots 14: 15. The farther the pins 43--(ll are from the pivots 14 -15, the greater will be the extension ofthe stacker head.

The salient feature of my invention is the mechanism by whlch thestacker head is ex-f tended and retracted, and I wish it to beunderstood that the embodiment? thereof illustrated in the drawings isonly one of a number of ways in which the mechanical principles involvedmay be applied, My invention, therefore, isnot limited to the specificconstruction shown and described, but includes such variations thereofaswould occur to those skilled in the art, and the claimshereinafter.made are tobe construed accordingly. V v

.What I claim as invention and desire to secure by Letters Patent, isV 1. A stacker comprising a. base, a swinging lifting frameconnectedtherewith, an extensible frame carried by said lifting.

frame and movable longitudinally thereof,

a head carried by said extensible frame, and means fulcrumed upon thelifting frame and connected with the base and with. the stacker head foradvancing and retracting said head. c a I '2. A stacker comprising abase, a swinging lifting frame connected therewith, an extensible framecarried by said lifting frame and movable longitudinally thereof, a headcarried by said extensible frame, and means pivotally mounted on saidlifting frame and connected with .thelxextensible frame and with'thebase for moving saidextensible frame longitudinally by the swinging ofsaid lifting frame. j

8. A stacker comprising a base, a swinging lifting frame connectedtherewith, an extensible frame carried by said lifting frame and movablelongitudinally thereof, a head carried by saidextensible "frame, andmeans pivotally mounted von said lifting frame and connected with thebase in advance of the pivot ofthe lifting frame and with the extensibleframe for moving said extensible frame longitudinally by, the swingingof said lifting frame. V

4. A stacker comprising a base, a'swinging lifting frame connectedtherewith, an extensible frame carried by said lifting frame and movablelongitudinally thereof, ahead carried by said extensible frame, and

ing lifting frame connected therewith, an

extensible frame carried by said lifting frame, and movablelongitudinally thereof, a head carried by said extensible frame, and alever movably connected intermediately with the lifting frame andconnected with the extensible frame and with the base for moving saidextensible frame longitudinally bythe swinging of said lifting frame.

7. A stacker comprising a base, a swinging lifting frame connectedtherewith,,an extensible frame carried by said lifting frame and movablelongitudinally thereof, a head carried by said extensible fra1ne,'and alever mounted intermediately on the lifting frame and connected with theextensible frame and with the base in advance of the: pivot I of thelifting frame for moving said extensible frame longitudinally by theswinging of said lifting frame.

8 A stacker comprising abase, a swinging lifting frame connectedtherewith, an

extensible frame carried by said lifting frame and movablelongitudinally thereof, a head carried by said extensible frame, and alever movably connected intermediately with the lifting frame andcomiected with the extensible frame and with the base in advance ofthe'pivot of the lifting frame for moving said extensible framelongitudi-' nallyby the swinging of said lifting frame.

9 A stacker comprising a base, a swinging lifting frame connectedtherewith, an extensible frame carried by said lifting frame and movablelongitudinally thereof, a head carried by said extensible frame, a levermovably connected intermediately with the lifting frame and connectedwith the extensible frame and the base, anda link connecting said leverwith thegextensible frame whereby saidextensible frame willibe 'meanshaving a shifta'ble bearing on said moved longitudinally by the swingingof said lifting frame.

10. A stacker comprising a base, a swinging lifting frame connectedtherewith, an extensible frame carried by said lifting frame and movablelongitudinally thereof, a head carried by said extensible frame, a linkpivotally connected with said extensible frame, a movable membercoacting with said link, and means whereby the swinging of said liftingframe actuates said movable member to move said extensible framelongitudinally.

11. A stacker comprising a base, a swinging lifting frame connectedtherewith, an extensible frame carried by said lifting frame and movablelongitudinally thereof, a head carried by said extensible frame, a linkpivotally connected with said extensible frame, swinging means connectedwith said link and with the base, and means whereby the swinging of saidlifting frame actuates said swinging means to move said extensible framelongitudinally.

12. A stacker comprising a base, a swinging lifting frame connectedtherewith, an extensible frame carried by said lifting frame and movablelongitudinally thereof, a head carried by said extensible frame, a linkpivotally connected with said extensible frame, a lever connected withsaid link and with the base, and means whereby the swinging of saidlifting frame actuates said lever to move said extensible framelongitudinally.

13. A stacker comprising a base, a swinging lifting frame connectedtherewith, an extensible frame carried by said lifting frame and movablelongitudinally thereof, a head carried by said extensible frame, a linkpivotally connected with said extensible frame, and a lever mountedintermediately on the lifting frame and connected with said link andwith the base for moving said extensible frame longitudinally by theswinging of said lifting frame.

14. A stacker comprising a base, a swinging lifting frame connectedtherewith, an extensible frame carried by said lifting frame and movablelongitudinally thereof, a head carried by said extensible frame, a linkpivotally connected with said extensible frame, and a lever movablyconnected intermediately with said lifting frame and hav-. ing its endportions connected with said link and with the base for movin saidextensible frame longitudinally by the swinging of said lifting frame.

15. A stacker comprising a base, a swinging lifting frame connectedtherewith, an extensible frame carried by said lifting frame and movablelongitudinally thereof, a head carried by said extensible frame, and

mechanism for advancing and retract-ing the stacker head consisting ofmeans pivotally supported by the base and fulcrumed upon the liftingframe, and a rising and fallin link pivotally associated with thestacker head and with said means.

16. A stacker comprising a base, a swinging lifting frame connectedtherewith, an extensible frame carried by said lifting frame and movablelongitudinally thereof, a head carried by said extensible frame, and amember pivotally connected with the base and with said extensible frame,said member being operatively engaged intermediately by the liftingframe to move said extensible frame endwise by the swinging of saidlifting frame.

17. A stacker comprising a base, a swinging lifting frame connectedtherewith, an extensible frame carried by said lifting frame and movablelongitudinally thereof, a head carried by said extensible frame, and amember pivotally connected with the base at a point forward of the pivotof said lifting frame and connected with said exten sible frame, saidmember being operatively engaged intermediately by the lifting frame tomove said extensible frame endwise by the swinging of said liftingframe.

18. A stacker comprising a base, a swinging lifting frame connectedtherewith, an extensible frame carried by said lifting frame and movablelongitudinally thereof, a head carried by said extensible frame, amember pivotally connected with the base, and a swinging link connectingsaid member with the extensible frame, said member being operativelyengaged intermediately by said lifting frame, whereby said extensibleframe will be moved longitudinally by the swinging of said liftingframe. 19. A stacker comprising a base, a swinging lifting frameconnected therewith, an extensible frame carried by said lifting frameand movable longitudinally thereof, a head carried by said extensibleframe, a member pivotally connected with the base in advance of thepivot of said lifting frame, and a swinging link connecting said mem berwith the extensible frame, said member being operatively engagedintermediately by said lifting frame, whereby said extensible frame willbe moved longitudinally by the swinging of said lifting frame.

20. A hay stacker comprising a base, a swinging lifting frame, anextensible frame carried by said-lifting frame, a lever connected withthe extensible frame and the base, and means operated by the swinging ofsaid lifting frame for actuating said lever to move said extensibleframe relatively to said lifting frame.

HERMAN MOSCHEL.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, D. C.

